Heating Ducts In Attic

Because the average humidity level is 10 20 in phoenix.

Heating ducts in attic. Well mainly it s a way to save space. 1 10 5 25 per foot insulated flexible duct 4 to 16 diameters used as branches or in radial duct attic systems 2 30 13 00 per foot round and oval sheet metal duct 3 to 8 diameters typically used for trunks in small homes and. Think about it condensation on ductwork probably isn t a big problem in phoenix arizona but why. Here are the itemized costs for the most common types of ductwork and supplies needed to complete installation.

The next most typical type of duct systems is made of flexible duct. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. The unconditioned space also houses his hvac system. With newer foundation systems involving embedded rebar or tension cables making in slab hvac ductwork nearly impossible there s little other option but to move it to the attic.

Round pipe can be used as a main trunk line or branch line as well as in return air situations. This is an especially relevant tip for flex ducts more on that in a minute but you need to make sure any ducts in your attic have proper support. There will be less duct leakage. It maintains the most efficient characteristics for airflow and is common throughout the country.

Ted has more than a few cobwebs in his attic. Master flow metal pipe is available in a master flow metal pipe is available in a variety of common lengths diameters and gauges to help make your next hvac project a success. Sometimes air conditioned air will seep right through your ducts and become useless instead of heating and cooling your home. Attic hvac systems also require shorter ducts.

Improperly supported flex ducts will sag which cuts down on airflow. The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. So why put an hvac system up in the attic at all.

In the 70 s and 80 s in slab hvac ductwork was commonplace and took advantage of the relatively stable temperature of the slab at or near the ground. Attic hvac systems save space. Flexible duct is a plastic tube that is reinforced with wire and then insulated on the outside. Duct leakage causes a lot of problems including less.

Ted also has inherited a powered attic ventilator. Here s why that is a good thing. All ducts are at risk for this type of leakage. Cost of installation supplies.

The air ducts for a central hvac systems are typically located above a home in the attic or upper crawl space or underneath a home in the space between the foundation and the floor so you don t see them unless you have cause to replace them. The really bad news is that with old metal duct systems the only option is replacement of the ducts to stop the rain in the attic.